Just so you know, the fuel economy readings tend to be skewed high. That's been the almost universal experience of those who track their mileage. Mine's off by over 3 mpg. One forum member found his readings off by about 6 mpg.

__________________
14 E250 Bluetec 4Matic "Sinclair", Palladium Silver on Black, 156k miles
06 E320 CDI "Rutherford", Black on Tan, 173k mi, Stage 1 tune, tuned TCU
91 300D "Otis", Smoke Silver on Tan, 143k mi, wastegate conversion, ALDA delete

19 Honda CR-V EX 67k mi
Fourteen other MB's owned and sold
1961 Very Tolerant Wife